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MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
5th Edition
ISBN: 9781305581159
Author: Nicholas J. Garber; Lester A. Hoel
Publisher: Cengage Learning US
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Chapter 16, Problem 17P
To determine
The suitable rectangular flexible lined channel to resist erosion for a maximum flow of
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A cast iron rectangular channel under uniform-flow conditions has a bottom width of 7 feet, the water flow rate is 75 ft3/s, and the terrain where the channel is situated drops 1.5 feet per 1000 feet length. Determine the minimum height.
PROBLEM 2
(a) What diameter of semicircular channel will have the same capacity as a rectangular channel of width 8 ft and
depth 3 ft? Assume S and n are the same for both channels.
(b) What is the wetted perimeter (ft) of the semicircular channel?
(c) What is the wetted perimeter (ft) of the rectangular channel?
(d) Which section has the greater wetted perimeter?
A rectangular channel section increases in width from 40 ft to 50 ft in a length of 100 ft. The channel slope is 0.1%. If the discharge and the velocity of flow at section 1 are 2950 cfs and 12.8 ft/sec, respectively, determine the depths of flow at sections 1 and 2 and the velocity at section 2. Use the energy principle. Disregard the losses.please show step by step.
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